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// Copyright 2014 The Bazel Authors. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package com.google.devtools.build.lib.analysis;
import com.google.common.base.Preconditions;
import com.google.devtools.build.lib.analysis.config.BuildConfiguration;
import com.google.devtools.build.lib.cmdline.Label;
import com.google.devtools.build.lib.collect.nestedset.NestedSet;
import com.google.devtools.build.lib.packages.License;
import com.google.devtools.build.lib.skyframe.serialization.autocodec.AutoCodec;
import java.util.Objects;
/** A {@link ConfiguredTarget} that has licensed targets in its transitive closure. */
public interface LicensesProvider extends TransitiveInfoProvider {
/**
* The set of label - license associations in the transitive closure.
*
* <p>Always returns an empty set if {@link BuildConfiguration#checkLicenses()} is false.
*/
NestedSet<TargetLicense> getTransitiveLicenses();
/**
* A label - license association for output_licenses. If there are no output_licenses it returns
* null.
*/
TargetLicense getOutputLicenses();
/**
* Return whether there is an output_licenses.
*/
boolean hasOutputLicenses();
/** License association for a particular target. */
@AutoCodec
final class TargetLicense {
private final Label label;
private final License license;
public TargetLicense(Label label, License license) {
Preconditions.checkNotNull(label);
Preconditions.checkNotNull(license);
this.label = label;
this.license = license;
}
/**
* Returns the label of the associated target.
*/
public Label getLabel() {
return label;
}
/**
* Returns the license for the target.
*/
public License getLicense() {
return license;
}
@Override
public int hashCode() {
return Objects.hash(label, license);
}
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (!(obj instanceof TargetLicense)) {
return false;
}
TargetLicense other = (TargetLicense) obj;
return label.equals(other.label) && license.equals(other.license);
}
@Override
public String toString() {
return label + " => " + license;
}
}
}
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